Unio diminutus I. Lea, 1859 | LEEDM.C.1957.173.27816 | Mollusca Types in Britain & Ireland
Type Specimen

Unio diminutus I. Lea, 1859
Paralectotype(s)

Lea, I. 1859. Descriptions of twenty-one new species of exotic Unionidae. Proceedings of the Academy of Natural Sciences of Philadelphia. 11. pp.151-154 [151] [Original Description]
Johnson, R. I. 1971. The types and figured specimens of Unionacea (Mollusca: Bivalvia) in the British Museum (Natural History). Bulletin of the Natural History Museum of London (Zoology). 20(3). pp.73-108. 2 pls. [82-83] [Type Designation]
Current name: Unio caffer Krauss, 1848 [source: MUSSELp webpage]
Classification: Bivalvia : Unionida : Unionoidea : Unionidae
Type Status: Paralectotype(s) [Verified - Jennifer Gallichan ]
Collection: Leeds Museums & Galleries (Mr Sylvanus Charles Thorpe Hanley B.A., F.L.S.)
Catalogue No.: LEEDM.C.1957.173.27816
No. specimens: 1 (shell)
Type Locality: East Africa
Collecting details:
Notes
Name published as diminutis in Lea, 1859, corrected to diminutus in his 1860 paper. Lea does not refer to one individual specimen in his original description, he states 'Mus. Cuming' and 'Mus. Hanley' as the source. In the 1860 paper he states 'the two specimens before me of this small and interesting species are all I have ever seen of it. That from Mr Cuming is very perfect and nearly double the size of Prof. Hanley's, which is evidently a young individual'. The original description does not specify a holotype, however Johnson, 1971 states that the 'holotype' is at the BM(NH) 1965165 (Cuming coll.). There is a note on that specimen stating 'potential lectotype', and another stating that it was designated by Johnson in 1966 (assumed to be an error, actually referring to 1971 paper). Since Johnson listed it as a Holotype and this was made pre-2000, this classifies as 'Lectotype selection by inference of Holotype' (ICZN 74.6). Leeds specimen has a Hanley label, as well as two modern labels stating that this is a paratype/syntype. Hanley refers to the specimen in his Handwritten catalogue stating 'Lea (one of his types). E. Africa'. One of the valves of the specimen has been broken.
References

References are listed in chronological order. References containing the "Original Description" or "Type Designation" of Unio diminutus I. Lea, 1859 are highlighted in red.

Lea, I. 1859. Descriptions of twenty-one new species of exotic Unionidae. Proceedings of the Academy of Natural Sciences of Philadelphia. 11. pp.151-154 [151] [Original Description]
Lea, I. 1860. Descriptions of exotic Unionidae. Journal of the Academy of Natural Sciences of Philadelphia. (2)3. pp.235-273. pls. 33-45 [254; pl.39; figs.134] [Cited]
Johnson, R. I. 1971. The types and figured specimens of Unionacea (Mollusca: Bivalvia) in the British Museum (Natural History). Bulletin of the Natural History Museum of London (Zoology). 20(3). pp.73-108. 2 pls. [82-83] [Type Designation]
Specimen Data
Point Locality: East Africa
Continent: Africa
Country: -
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Island Group: -
Island: -
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Curatorial Contact

Clare Brown
Curator of Natural Science
Leeds Museums & Galleries
Leeds Museum Discovery Centre, Carlisle Road
Leeds
LS10 1LB

Email: Clare Brown
Tel:

Rebecca Machin
Curator of Natural Science
Leeds Museums & Galleries
Leeds Museum Discovery Centre, Carlisle Road
Leeds
LS10 1LB

Email: Rebecca Machin
Tel:

Publishing on these specimens?
When referring to Museum specimens in a publication, please include the accession number and the name of the holding institution. Please also cite this website where appropriate. The recommended citation is:

Ablett J., Brown C., Gallichan J., Gordon D., Holmes A. M., Hunter T., Machin R., Morgenroth H., Oliver P. G., Petts R., Pye S., Reilly M., Rowson B., Salvador A., Sutcliffe R., Turner J. A., Wood H. 2019. Mollusca Types in Great Britain. Amgueddfa Cymru-National Museum Wales / Natural History Museum. Available online at https://gbmolluscatypes.ac.uk [Accessed:  ].

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